An estimated 30 to 40% of psoriasis patients in Montana and across the United States also develop a secondary condition known as psoriatic arthritis. Psoriatic arthritis is a disease that causes painful inflammation in the joints, tendons and ligaments. Unfortunately, psoriatic arthritis is often misdiagnosed.
A study published in Rheumatology Consultant found that 31% of those surveyed didn't receive a diagnosis of psoriatic arthritis until five years after seeking medical assistance for symptoms. Only 30% were diagnosed within six months of going to the doctor, and 33% received a diagnosis between six months and four years of seeking help. Delayed diagnosis may cause a worsened medical condition to occur.